166851850182 has 16 divisors (see below), whose sum is σ = 333721278192. Its totient is φ = 55614353760.

The previous prime is 166851850163. The next prime is 166851850237. The reversal of 166851850182 is 281058158661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607369 + ... + 838212.

It is an arithmetic number, because the mean of its divisors is an integer number (20857579887).

Almost surely, 2^166851850182 is an apocalyptic number.

166851850182 is an abundant number, since it is smaller than the sum of its proper divisors (166869428010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166851850182 is a wasteful number, since it uses less digits than its factorization.

166851850182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464823.

The product of its (nonzero) digits is 921600, while the sum is 51.

The spelling of 166851850182 in words is "one hundred sixty-six billion, eight hundred fifty-one million, eight hundred fifty thousand, one hundred eighty-two".